I had a lag bolt pierce my rear tire between the treads. Most tire stores said to replace, however, the one I trust the most as the most knowledgeable said it is an easy repair. That was about 3,000 miles ago and some pretty high speed driving but not through agressive turns.

By the way, if you don't have all four snaps fastened on the boot it begins to flap in the wind around 110MPH.